It looks like the problem's gotten a little better. Was on a call last night and didn't notice any major lag. Although the second weird ring has changed into overlapping rings. That is, before the first ring finishes, a second, odd-sounding ring starts. I have another friend on Vonage who experienced the same thing a while back. A little strange, but at least the lag has cleared up a little. No idea what happened though. And does anyone know if Vonage has tier-two support, and how to reach it? It's sounding like their tier-one support isn't helping our problem. (Having us do pings and traceroutes will only point the finger at our ISPs.)